Dataset Information

Prediction of week 4 virological response in hepatitis C for making decision on triple therapy: the Optim study.

ABSTRACT:

Background

Virological response to peginterferon + ribavirin (P+R) at week 4 can predict sustained virological response (SVR). While patients with rapid virological response (RVR) do not require triple therapy, patients with a decline <1 log10 IU/ml HCVRNA (D1L) should have treatment discontinued due to low SVR rate.

Aim

To develop a tool to predict first 4 weeks' viral response in patients with hepatitis C genotype 1&4 treated with P+R.

Methods

In this prospective and multicenter study, HCV mono-infected (n=538) and HCV/HIV co-infected (n=186) patients were included. To develop and validate a prognostic tool to detect RVR and D1L, we segregated the patients as an estimation cohort (to construct the model) and a validation cohort (to validate the model).

Results

D1L was reached in 509 (80.2%) and RVR in 148 (22.5%) patients. Multivariate analyses demonstrated that HIV co-infection, Forns' index, LVL, IL28B-CC and Genotype-1 were independently related to RVR as well as D1L. Diagnostic accuracy (AUROC) for D1L was: 0.81 (95%CI: 0.76 ? 0.86) in the estimation cohort and 0.71 (95%CI: 0.62 ? 0.79) in the validation cohort; RVR prediction: AUROC 0.83 (95%CI: 0.78 ? 0.88) in the estimation cohort and 0.82 (95%CI: 0.76 ? 0.88) in the validation cohort. Cost-analysis of standard 48-week treatment indicated a saving of 30.3% if the prognostic tool is implemented.

Conclusions

The combination of genetic (IL28B polymorphism) and viral genotype together with viral load, HIV co-infection and fibrosis stage defined a tool able to predict RVR and D1L at week 4. Using this tool would be a cost-saving strategy compared to universal triple therapy for hepatitis C.

SUBMITTER: Romero-Gomez M

PROVIDER: S-EPMC4426774 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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Publications

Prediction of week 4 virological response in hepatitis C for making decision on triple therapy: the Optim study.

Romero-Gómez Manuel M Turnes Juan J Ampuero Javier J Oyagüez Itziar I Cuenca Beatriz B Gonzalez-Garcia Juan J Muñoz-Molina Belén B Aguilar Rocio R Leal Sandra S Planas Ramon R Garcia-Samaniego Javier J Diago Moises M Crespo Javier J Calleja Jose Luis JL Casado Miguel Angel MA Sola Ricard R

PloS one 20150331 3

<h4>Background</h4>Virological response to peginterferon + ribavirin (P+R) at week 4 can predict sustained virological response (SVR). While patients with rapid virological response (RVR) do not require triple therapy, patients with a decline <1 log10 IU/ml HCVRNA (D1L) should have treatment discontinued due to low SVR rate.<h4>Aim</h4>To develop a tool to predict first 4 weeks' viral response in patients with hepatitis C genotype 1&4 treated with P+R.<h4>Methods</h4>In this prospective and mult ...[more]

PMID: 25826755

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Project description:BackgroundDirect-acting antiviral drugs have a high cure rate and favourable tolerability for patients with hepatitis C virus (HCV). Shorter courses could improve affordability and adherence. Sofosbuvir and ledipasvir with ribavirin have high efficacy when taken for 8 weeks but not for 6 weeks. We assessed whether the addition of a third direct-acting antiviral drug to sofosbuvir and ledipasvir would allow a shorter treatment duration.MethodsIn this single-centre, open-label, phase 2A trial, we sequentially enrolled treatment-naive patients with HCV genotype 1 infection into three treatment groups: 12 weeks of sofosbuvir and ledipasvir; 6 weeks of sofosbuvir, ledipasvir, and GS-9669; or 6 weeks of sofosbuvir, ledipasvir, and GS-9451. Patients and investigators were not masked to treatment assignment. The primary endpoint was the propotion of patients with sustained viral response at 12 weeks after treatment completion (SVR12), assessed by serum HCV RNA concentrations lower than 43 IU/mL (the lower limit of quantification). We did an intention-to-treat analysis for the primary endpoint and adverse events. This study is registered with ClinicalTrials.gov, number NCT01805882.FindingsBetween Jan 11, 2013, and Dec 17, 2013, we enrolled 60 patients, and sequentially assigned them into three groups of 20. We noted an SVR12 in all 20 patients (100%, 95% CI 83-100) allocated to sofosbuvir and ledipasvir for 12 weeks; in 19 (95%, 75-100) of the 20 patients allocated to sofosbuvir, ledipasvir, and GS-9669 for 6 weeks (one patient relapsed 2 weeks after completion of treatment); and in 19 (95%, 75-100%) of the 20 patients allocated to sofosbuvir, ledipasvir, and GS-9451 for 6 weeks (one patient was lost to follow-up after reaching sustained viral response at 4 weeks). Most adverse events were mild and no patients discontinued treatment. Two serious adverse events occurred (pain after a post-treatment liver biopsy and vertigo), both unrelated to study drugs.InterpretationIn this small proof-of-concept study, two different three-drug regimens that were given for 6 weeks resulted in high cure rates for HCV infection with excellent tolerability. Addition of a third potent direct-acting antiviral drug can reduce the duration of treatment required to achieve sustained viral response in patients with chronic HCV genotype 1 infection without cirrhosis.FundingNational Institute of Allergy and Infectious Diseases (NIAID), National Cancer Institute and Clinical Center Intramural Program, German Research Foundation, National Institutes of Health, Gilead Sciences.

Dataset Information

Prediction of week 4 virological response in hepatitis C for making decision on triple therapy: the Optim study.

Background

Aim

Methods

Results

Conclusions

Publications

Prediction of week 4 virological response in hepatitis C for making decision on triple therapy: the Optim study.

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